hiyaaaa weve put our lo on to cow & gate comfort which is meant to be thicker, he is on 4oz every 3 hours but found that he started just taking two and couldnt take any more as he was out for the count, well away so we let him take as much as he wants until he falls asleep, wind him then offer him the bottle again he's always taken it and 9 times out of 10 he finishes it off x